| Biggest Cities in the World | 0 | - | 4.91 | 804,937 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,392 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,873 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,852 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,210 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,372 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,694 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,706 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,194 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,895 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,570 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,649 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,161 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,329 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,181 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,369 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,162 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,853 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,895 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,924 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,504 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,566 |
| Largest City by Island | 0 | - | 4.87 | 72,400 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,390 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,627 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,091 |
| Megacities on a World Map | 0 | - | 4.98 | 256,684 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,730 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,595 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,107 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,582 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,900 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,599 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,987 |
| Countries with Megacities | 0 | - | 4.99 | 266,780 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,676 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,020 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,991 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,139 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,928 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,052 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,393 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,398 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,122 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,471 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,196 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,250 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,053 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,638 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,138 |
| Biggest City by Region | 0 | - | 4.50 | 36,378 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,319 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,631 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,286 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,951 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,612 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,628 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,300 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,434 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,527 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,350 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,557 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,275 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,915 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,593 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,856 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,157 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,550 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,003 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,375 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,861 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,000 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,951 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,209 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,412 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,393 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,072 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,862 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,754 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,169 |
| Biggest Cities in History | 0 | - | 4.52 | 90,548 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,919 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,133 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,905 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,596 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,881 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,678 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,097 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,135 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,918 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,533 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,031 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,679 |
| Boundary Waters | 0 | - | 4.92 | 88,739 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,390 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,631 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,253 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,913 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,741 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,319 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,878 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,263 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,595 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,699 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,835 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,167 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,492 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,332 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,372 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,045 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,759 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,720 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,833 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,485 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,149 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,487 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,839 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,713 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,580 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,845 |
| Most Populous Islands | 0 | - | 4.80 | 123,275 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,376 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,636 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,967 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,460 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,770 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,743 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,083 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,466 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,103 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,255 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,516 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,430 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,921 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,975 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,190 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,983 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,747 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,767 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,473 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,300 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,791 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,818 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,270 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,913 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,597 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,798 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,806 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,931 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,511 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,197 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,830,785 |
| Landlocked Countries | 0 | - | 4.99 | 425,048 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,119 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,958 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,259 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,783 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,046 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,892 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,348 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,735 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,088 |
| Population Trivia | 0 | - | 4.32 | 27,556 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,763 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,972 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,481 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,105 |
| World Capitals Quiz | 0 | - | 5.00 | 5,102,459 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,905 |
| Himalayan Countries | 0 | - | 4.93 | 139,970 |
| Andean Countries | 0 | - | 4.94 | 85,290 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,446 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,791 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,018 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,315 |
| Danube Countries | 0 | - | 4.97 | 72,312 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,476 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,753 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,974 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,465 |
| European Landlocked Countries | 0 | - | 4.99 | 147,526 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,183 |
| Countries with the Most Species | 0 | - | 4.99 | 103,518 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,315 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,740 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,850 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,786 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,519 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,953 |
| Countries in the Alps | 0 | - | 4.87 | 118,681 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,471 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,728 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,914 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,956 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,874 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,184 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,313 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,808 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,370 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,115 |
